Motion transmitting mechanism



INVENTOR dohn Kunz 2 Sheets-Sheet l J. KUNZ MOTION TRANSMITTINGMECHANISM Original Filed Aug. 5, 1940 Jan. '2, 1945.

Jan. 2, 1945. J KUNZ 2,366,199

MOTION TRANSMITTINGMECHANISM Origihal Filed Aug. 1940 2 Sheets-Sheet 2INVENTOR John mm:

sheets.

Patented Jan. 2, 1945 UNITED STATES PATE NTOFFICE Mo'noN rRa snnf'rTmGMECHANISM j p John Kunz, Pittsburgh, Pa., ass igno r to MillerPrintingMachinery C'o.

poration of Pennsylvan Pittsburgh, Pa., a cor Original application Adust3, 1940; Serial No.

350,705. Divided and this [17,1941, Serial No. 415,403

application October V This jinvention relates to motion transmittingmechanism. It relates more particularly to means for transmittingoscillatory motion. It. relates still more particularly toimeans fortransmitting oscillatoryv motion from an oscillating driving member toan oscillating driven member while providing for control and adjustmentof the relative amplitude of oscillation of said members. Thisapplication is a division ofiny co-j pending application .Serial No.350,705,; filed August 3, 1940.

While the invention is of wide application I have found it to beparticularly adaptable to. an inker and purely for purposes ofexplanation and illustration the invention will herein be. describedasapplied to .an inker. An inker delivers ink to a printing form forprinting The ink is delivered to the form by what are known in the artas form inking rollers or simply form rollers. In order to properlydistribute the ink upon thejform rollers there are provided distributingrollers which contact the surfaces of the form rollers and oscillate orvibrate axially, these rollers being known in the art as vibratorrollers. Since the vibrator rollers are arranged with their axesextending transversely of the inker means must be provided for vibratingthem in the trans-- verse direction. However, thepower to vibrate or.oscillate the vibrator rollers is ordinarily derived froma member whichoscillates in a vertical longitudinal plane. Consequently oscillatingmotion has to be transmitted between a member oscillating in a verticallongitudinal plane and the vibrator rollers which oscillate in ahorizontal transverse plane. l

Various means for transmitting the vibraterm or oscillatory 'motion fromthe driving means to the vibrator rollers have heretofore been providedand they have accomplished the function after a fashion. However, suchmeans have in many cases been unduly complicated and expensive andineflicient inoperation. {Deflnite' limitations have been imposed uponthe I amplitude of vibration ofthe vibrator rollers.

description of apresent preferred embodiment of theinvention proceeds. 1

transmitted .efficiently and in] sucha wayas to provide "for maximumamplitude of vibration of the; vibrator rollers when. desired. Moreover;provision .is made for adjusting the amplitude of vibration of thevibrator rollers without change ing the amplitude ofoscillation ofthedriving means and without necessitating stopping operation of theinker or the press with. whichthe efficientin operation and of low.cost..

inker is used. The mechanism is simple and Other details, objects andadvantages of. the

invention-willbecome apparent as the following In the accompanyingdrawings-I have shown .a present preferred embodimentof the invention,inwhich 1 Figure 1 is a fragmentary elevational View of an inker showingmy motion transmitting mechanism; and u c Figure 2 is a fragmentaryvertical longitudinal cross-sectional view of a portion oi'the structure3 shown in, Figure .1 but to enlarged scale.

Referring now more particularly to the -drawings, there. is shown aninker. having form rollers 4, 5 and fi for delivering ink to .aprinting.

form which oscillates horizontally in" contact withthe under surfacesof.such form rollers.

The inkis delivered to and distributed upon the form rollers bydistributor vibrator rollers 28 and 29; The vibratorroller 28 engagestheformj rollers land 5 and thevibrator roller 29 engages the formroller 6. The vibrator rollers maybe driven if desired, although themeans for driving themif employed forms no part of the present in?vention and isnot shown. The vibrator rollers are vibrated or oscillatedaxially inoppositedirections, that is, when the roller 28 is movingaway.

from the viewer in Figure 2 the roller29 ismov- .ing toward the viewerand" vice versa. Also means :is provided for altering within a widerange the amplitude of oscillation of the vibrator rollers. Such meansand the means for oscillating the vibrator rollers will now bedescribed.

Each of the vibrator rollers 28 and 2.9.is rotata'bly mounted inbearings. (not shown). in. the

inker frame... The bearings allow for axial vibra.

tion of the rollers during operation of the inker. Each roller hasadjacent'one endthereof a circular cam groove within which is disposedaroller mountedon the opposite ends of a lever 2l6pivoted to the inkerframe and, having integral therewith a bevel gear The respectiverollersf2l5- are .rotatably is mounted in the frame and carries at oneend a bevel pinion 226 meshing with the bevel gear 2I8. At its other endthe stub shaft 219 carries a, spur pinion segment 22| meshing with aspur gear segment 222 'pivoted to the frame at 223 and having an arm 5224 extending generally downwardly and longitudinally of the inker andcarrying at its extremity a roller 225. Means presently to be describedis provided for oscillatably swinging the arm 224 about theaxis of thepivot 223 whereby to oscillate the gear segment 222 and hence throughthe pinion segment 22! the bevel pinion 220 and the bevel gear 2H3 tooscillate the lever 2| 6 about its vertical pivot. Since the rollers 215are in the circular cam grooves in the vibrator rollers 28 and 29 thisoscillatory movement causes lengthwise oscillation or vibration of thevibrator rollers 28 and 29.

Mounted in the frame is a stub shaft 226 to which is fixed an arm 221having at its extremity a fork 228 adapted to receive the roller 225 asshown in Figure 1. The shaft 226 is adapted to oscillate, suchoscillation being imparted'to the fork 228 and through it to the roller225'and the arm 224. The shaft 226 carries an arm 229 which is fixedthereto and which arm 229 has pivoted thereto at its opposite end at 230a downwardly extending link or rod 23I carrying at its lower end aroller 232."The rod 21- is guided for generally vertical slidingmovement generally longitudinally of itself by a guide collar 233'through which the rod passes and which is adapted to be adjustably'positioned as will presently be described. The roller 232 rides withina hollow arm 234 fixed to a shaft 235 mounted in the frame. Also fixedto the shaft 235 is a generally downwardly extending arm 236 which liesand operates in a vertical longitudinal plane and. is adapted to beoscillated by the driving mechanism for the inker or press. The arm 236'constitutes the source of power so far as the mechanism with which thepresent application deals is concerned.

Oscillation of the arm 236 causes oscillation of the shaft 235 andcorresponding oscillation of the hollow arm 234 which is fixed to theshaft 235. This in turn causes generally up and down sliding movement ofthe rod 23l in the guide collar 233. This movement will, of course, beaccompanied by some relative movement lon gitudinally of the hollow arm234 between such arm and the roller 232.

If the guide collar'233 is moved toward the right, viewing Figure 1, theamplitude of oscillatory movement imparted by the mechanism justdescribed to the shaft 226 and the arm 229 thereon will be increasedbecause the roller 232 will then be cooperating with a portion of thehollow arm 234 farther removed from the center of turn ing 235 of sucharm. Such movement of the guide collar 233 is provided for through itsbeing pivotally mounted at 246 upon the lower end of an arm 24! fixed toa shaft 248 in the frame. Also fixed to the shaft 248 is an arm 249carrying at its outer'extremity a spring pressed pin 250 adaptedselectively to enter one of an arcuate series of holes 25l in a plate252 forming a part of the frame. The series of holes 25| is arranged inan are about the axis of the shaft 248 and the spring pressed pin 250may by pulling. it out of whichever one of the holes it may be in,turning the am 249 about the axis of the shaft 248 to another positionand allowing the spring to project the pin inwardly, be positioned inany desired one of the holes 25l. When the pin 250 is in a hole near theupper end of the arcuate series of holes 25l the guide collar 233' ismoved toward the right, viewing Figure 1, and the amplitude ofoscillation of the shaft 226 is increased. The contrary is true when thepin 250 is in a hole near the bottom of the arcuate series of holes 25LIndeed. when the roller 232 is co-' 1 axial with the shaft 235 the shaft226 will not be oscillated at all despite continued oscillation of theshaft 235.

Thus by a very' quick and simple manipulation the amplitude ofoscillation or vibration of the vibrator rollers 28 and 29 may beadjusted. The means for vibrating these rollers and the means foradjusting the amplitude of vibration are such that a greater amplitudeof vibration is provided for than has been feasible with mechanisms forthe same purpose heretofore provided and amplitude adjustment may beeffected throughout a wider range than heretofore. Moreover, theamplitude of vibration of the vibrator rollers may be changedduringoperation of the mechanism without the necessity of stopping it to makethe adjustment.

While I have shown and described a present 1. In combination, anangularly oscillatable member, a generally elongated oscillatable memher, said members having a cam and follower connection wherebyoscillation of one thereofcausesoscillation of the other, guide meansfor the generally elongated oscillatable member with respect to whichsuch member is generally longitudinally slidable, upon oscillationandmeans for shifting the guide means generally transverseb'r of saidgenerally elongated oscillatable member to alter the relative positionsof the cam and follower during oscillation of said members and controlthe relative amplitude of oscillation thereof.

2. In combination, an angular-1y oscillatable member, a second memberoperatively connected.

with the oscillatable member to be oscillated V thereby but adaptedwhile so connected to have its place of connection with theoscillatablemem ber shifted along the oscillatable member, guidev meanshaving a slidable connection with the second member so as to allow thesecond member to partake of oscillatory movements imparted thereto bysaid oscillatablemember, and a bell crank lever one arm of which carriessaid guidemeans and another arm of which is shiftable whereby'to shiftthe place of engagement be tween the oscillatable member and the secondmember.

3. In combination, a slotted lever, a member operated by said leverhaving a portion engaging in and shiftable along the slot therein, guidemeans having a. slidable connection with said.

member, and means for shifting said guide means to shift the place ofengagement of said member on the slotted lever,.said last mentioned.

means including a bell crank lever one arm of which carries said guidemeans and another arm of which is quickly shiftable to and-fastenable inany desired one of a number-of positions. 1 J r 4. In combination,v anangularly oscillatable .member, a generally elongated oscillatableme'mher, said members having a connection whereby oscillation of onethereof causes oscillation of the other, said connection includingportions the position of saidadjustable pivotal connection Whoserelation may be altered to alter the amplitude of oscillation of thedriven member in 1 response to oscillation of predetermined amplithegenerally. elongated oscillatable member Within which such member isgenerally longitudinally slidable upon oscillation and. means forshifting said guide collarto alter therelation of said portions.

tude of the driving member, a guide collar for along said Secondmentioned arm, means including a rapidly shiftable operating member forshifting said guide means generally transversely of the link and meansfor maintainin said operating member selectively in a plurality ofpredetermined positions.

10. In combination, an 'angularly oscillatable "member, a, generallyelongated oscillatable mm- 5. In combination, an angularly oscillatablemember, a generally elongated oscillatable memher, said members having aconnection whereby oscillation of one thereof causes oscillation of the.other, said connection including portions ing a rapidly swingable rotaryoperating memher for swinging said guide means generally transversely ofsaid generally elongated oscillatable member to alter the relation ofsaid portions and aplurality of means arranged at intervals along thepath of said operating member for maintaining said operating memberselectively in a plurality, of predetermined positions.

6. In combination, a pair of angularlyoscillatable arms, a link joiningsaid arms, said link being pivoted to one of said arms and having aconnection with the other thereof adjustable along the arm and guidemeans forthe link positioned intermediate the arms 'for determining theposition of said adjustable connection along said second mentioned arm.i

7. In combination a pair of angularly oscillatable arms, a link joiningsaid arms, said link being pivoted to one of said arms and having aconnection with the other thereof adjustable along the arm and guidemeans for the link with respect to which the link is generallylongitudinally slidable, the-link and the second mentiona] arm bothturning and sliding relatively to each other upon oscillation.

8. In combination, a pair of angularly oscillatable arms, a link joiningsaid arms, said link being pivoted to one of said arms and having aconnection with the other thereof adjustable along such arm and whoseposition therealong determines the relative amplitude of oscillation ofsaid arms, guide means for the link withrespect to which the link isgenerally longitudinally slidable, the link and the second mentioned armboth turning and sliding relatively to each other upon oscillation, andmeans for shifting the guide. means for adjusting said connection alongsaid second mentioned arm.

, 9. In combination, a pairof angularly oscillatable arms, alink joiningsaid arms, said link being pivoted'to one of said arms and having aconnec-, tion with. the other thereof adjustablealong the arm, guidemeans 'for the link for determining ber, said members having aconnection whereby.

oscillation of one thereof causes oscillation of the other, saidconnection including portions whose relation may be altered to alter theam-.

plitude of oscillation of the driven member in response to oscillationof predetermined ampli-- tude of the driving member, a normallystationary guide carrier, a guide for the generally elongatedoscillatable member, said guide being carried by said carrierbut freelymovable relatively thereto in response to changes in angularity of thegenerally elongated oscillatable member durin oscillation thereof, andmeans for shifting said carrier to alter the relation of said portions.

11; In combination, an angularly oscillatable member, a generallyelongated oscillatable member, said members having a connection whereby.oscillation of one thereof causes oscillation of the other, saidconnection including portions whose relation may be altered toalter theamplitude of oscillation of the driven member in re-.

, sponse to oscillation of predetermined amplitude of the drivingmember,

oscillatable member, said guide being pivoted to said carrier so as toturn freely relatively thereto 1 in response to changes in angularity ofthe generally elongated oscillatable member during oscillation thereof,and means for shifting said carrier to alter the relation of saidportions.

12. In combinatioman angularly oscillatable.

- member, a generally elongated oscillatable member, said members havinga connectionwhereby oscillation of one thereof causes oscillation of theother, said connection including portions Whose relation may be alteredto alter the amplitude of oscillation, of the driven member in responseto oscillation of predetermined amplitude of the driving member, a bellcranklever, a guide for the generally elongated oscillatable membercarried by one arm of saidbell crank lever, said bell crank lever beingoperable to shift said guide to alter the relation of saidportions, andmeans cooperating with theother arm of said bell crank lever, forpositioning the bell crank leverseleca tively in a plurality ofpredetermined positions,

13. In combination, a pair of angularly oscillatable arms, a link joininsaid arms, saidlink being pivoted to one of said arms and having aconnection: with the other. thereof adjustable along the arm, a guidecollar for the link within which "the link is generally longitudinallyslidable during operation andmeans for shifting said guide collar todetermine the position of said adjustable connection along said secondmentioned arm.

. JOHN KUNZ.

a normally stationary guide carrier, 2. guide for the generallyelongated

